This collection is composed of materials produced and collection by the 125th Anniversary Planning Committee. Folders include minutes, clippings, event invitations and programs, publications, photographs, audio-visual material, departmental histories, and memorabilia.

The Cooperative Extension Service celebration material is composed of material from several South Dakota County Extension offices and related what each county did to celebrate the 125th anniversary of South Dakota State University. Folders may contain photographs, clippings and other material documenting the event.

The audio-visual material is composed of master and finished product video footage in the form of videos and DVDs for the 125th anniversary celebration projects. Included with the material are taped interviews of prominent individuals, such as United States Senators and Representatives. Also included are some scripts.

Colleges, departments and faculty were to submit recommendations for a summary of important dates, events and people in the history of South Dakota State University. They were asked for focus on accomplishments since 1964 when the institution was granted university status. These are found in the material marked as Survey of Accomplishments.

Other material of interest includes a resolution proposed by the South Dakota Legislative Assembly, and memorabilia associated with the celebration, such as a replica of the Coughlin Campanile that includes a piece limestone from the original structure.

This collection is composed of committee files produced for or in conjunction with the Centennial Celebration of South Dakota State University held in 1981. The collection is made up of general office and administrative files with some memorabilia.

The office files include budgets, correspondence, committee minutes and the files from each sub-committee. The budgets material consists mainly of the accounting used to put on the centennial celebration and to run an office devoted to such an event. The sub-committees files consist mainly of simple reports on the actions of various departments and various committees over the year. The notable exception to this is the calendar committee, which demonstrated some of the scheduling programs of such a huge event. The most useful files include the minutes of the Steering Committee and the correspondence files, as they reflect the inner workings of the group and the magnitude of such an event. Much attention is given throughout this material to the appearance of and seminar honoring Theodore Schultz, SDSU graduate and Nobel Prize winner.

The administrative files include material that was produced for or in conjunction with the Centennial Celebration. Included in this file are the finished calendars, lists of speakers, publications association with the centennial, and congratulatory letters from land grant colleges, alumni, dignitaries and South Dakota organizations. Also included are programs and flyers from various centennial events. The transcripts and audio cassettes of the commencement addresses are also included.

The memorabilia includes examples of some the souvenirs that were produced during the centennial. Included are two paperweights, one is bronze and housed in a redwood box with blue velvet lining, and one is marble with a cork bottom, a brass insignia with clear acrylic covering an insignia which has a dark blue background and gold lettering. Also included is a light blue coaster with gold lettering, a tan button with dark brown lettering, and an acrylic box of gummed gold SDSU notarial seals and blue and yellow ribbons approximately one inch long.